Well im only 22yrs going on 23, what's the age limit exactly? The only thing that's really holding me back from going is college and also wondering, if everyone in the navy get's placed in a position where they need to kill people eventually, like for special ops or something.. I believe the age limit is 32, but if you are going to do it you would want to get started. you don't want to be the oldest guy in boot camp. lol anyways my dad was a pipe fitter (plumber on a huge scale basically) my step father was a radio operator and my father in law was a mechanic. they were all in Vietnam but never saw front line action. if you don't want to kill people avoid the marines and army, the navy and airforce are largely support roles who are not killing for a living.